
A strong atmospheric river moving into northern California later Tuesday will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through at least Wednesday. Gusty winds and isolated rain and snow showers will continue in the Northeast U.S. Tuesday behind a cold front. Read More >
In the United States new 30-year normals are calculated every ten years. The most recent normals (using 1991-2020 data) are listed below, along with the previous set of normals (from 1981-2010), and the difference between the two normals packages. Click on the images to see larger versions.
Or, click here to see comparisons between the new normals and the previous (1981-2010) set of normals in graphical format for local cities (BWG, FFT, LEX, SDF, LOU).
TEMPERATURE
| ANNUAL | ||||||||
| 1991-2020 | Difference Between Old and New | 1981-2010 | ||||||
| Mean | Maximum | Minimum | Mean | Maximum | Minimum | Mean | Maximum | Minimum | 
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| SEASONAL | |||||||||
| 1991-2020 | Difference Between Old and New | 1981-2010 | |||||||
| Mean | Maximum | Minimum | Mean | Maximum | Minimum | Mean | Maximum | Minimum | |
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| Summer | ![]()  | 
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| Autumn | ![]()  | 
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| Winter | ![]()  | 
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PRECIPITATION
| ANNUAL | |||
| Difference Between Old and New | |||
| 1991-2020 | Percentage Change | Value Difference | 1981-2010 | 
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| SEASONAL | ||||
| Difference Between Old and New | ||||
| 1991-2020 | Percentage Change | Value Difference | 1981-2010 | |
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| Summer | ![]()  | 
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| Autumn | ![]()  | 
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| Winter | ![]()  | 
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| MONTHLY | ||||
| Difference Between Old and New | ||||
| 1991-2020 | Percentage Change | Value Difference | 1981-2010 | |
| January | ![]()  | 
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| February | ![]()  | 
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| March | ![]()  | 
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| April | ![]()  | 
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| May | ![]()  | 
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| June | ![]()  | 
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| July | ![]()  | 
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| August | ![]()  | 
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| September | ![]()  | 
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| October | ![]()  | 
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| November | ![]()  | 
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| December | ![]()  | 
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DEW POINT
The following maps are from the PRISM Climate Group at Oregon State University
| January | February | March | April | 
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| May | June | July | August | 
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| September | October | November | December | 
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